The free and fully-featured Markdown editor for Windows allows you to write using an easy-to-read, easy-to-write plain text format, and then convert it to structurally valid XHTML (or HTML). In ...

They follow up with tips on turning some or all emails to plain text. If you're generally emailing inside a closed circle with Outlook users, HTML-formatted emails are probably fine.

Convert your scribbles to text with Google’s Handwriting Input app Your email has been sent Google's Handwriting Input app makes writing on your Android device easier than ever. Andy Wolber ...